Anti-surveillance clothing is becoming affordable enough for ordinary wardrobes, but its patterns only confuse certain ...

Northwestern engineers built a spinning drone that exploits motion blur, making it about ten times less visible than ...

Northwestern University in the US has developed a low-visibility drone called the “Phantom Twist.” It achieves low visibility ...

An autonomous mine hunter can cost about $3.66 million for one sonar payload delivery unit or about $8.92 million for an ...